Matters needing attention when purchasing power tools: First of all, a power tool is a hand-held or movable mechanized tool that is powered by a motor or electromagnet and drives the working head through a transmission mechanism. Power tools have the characteristics of easy portability, simple operation and diverse functions, which can greatly reduce labor intensity, improve work efficiency, and realize mechanization of manual operation. Therefore, they are widely used in construction, housing decoration, automobiles, machinery, electricity, bridges, gardening and other fields. , and into the family in large numbers. Power tools are characterized by light structure, small size, light weight, low vibration, low noise, flexible operation, easy control and operation, easy to carry and use, sturdy and durable.

Compared with manual tools, it can improve labor productivity several times to dozens of times; it is more efficient than pneumatic tools, low cost and easy to control. Distinguish between home and professional use according to your needs. Most power tools are designed for professionals. When purchasing, you should distinguish between professional and general household tools. Generally, the difference between professional and general household tools is in power. Professional tools have higher power to facilitate professionals to reduce workload. General household tools have relatively small workloads due to small projects. Therefore, the input of the tools is relatively small. The power doesn't need to be great either.

The outer packaging of the tool should have a clear pattern and no damage, the plastic box should be firm, and the hasp for opening the plastic box should be firm and durable. The appearance of the tool should be uniform in color, there should be no obvious shadows and dents on the surface of the plastic parts, there should be no scratches or bump marks, the assembly dislocation between the shell parts should be ≤0.5mm, and the coating of the aluminum casting should be smooth and beautiful without defects. Oil and stain free. When held by hand, the handle of the switch should be flat. The length of the cable should generally not be less than 2 meters. The nameplate parameters of the tool should be consistent with those on the CCC certificate. The detailed address and contact information of the manufacturer and the manufacturer should be included in the instruction manual.

The Electric Power Tools batch number for traceability of the product shall be on the nameplate or certificate of conformity. Hold the tool by hand, turn on the power, frequently operate the switch to make the tool start frequently, and observe whether the on-off function of the tool switch is reliable. At the same time, observe whether there are any abnormal phenomena on the TV and fluorescent lamps on site. in order to confirm that the tool is equipped with an effective radio interference suppressor. The tool is powered on and runs for one minute. Hold it by hand during operation. The hand should not feel any abnormal vibration. Observe the reversing spark. The reversing spark should not exceed level 3/2. From the inside, there should be no obvious arc on the surface of the commutator. During operation, there should be no abnormal noise.